Sash-lock.



F. W. GHAUSSE.

BASH LOOK.

APPLIOLTIOK FILED EAR. 31,1909. BEKEVED AUG. 13, 1911.

Patented Mar. 19, 1912.

E I W P i I y :Zl'wrwqy. I

FB,ANCIS W. CHAUSSE, F PORTLAND, OREGON.

SASH-LOCK. I

t eorist.

Specification of Letters Patent. Patented 113,1; 19, 1912.

Application filed March 31, 1909, SerielfNo. isease. Renewed August 12, 1911. Serial No. 643,785..

To all whom it may concern:

lie it known that I, FRANCIS W. CHAUSSE,

i u citizen of the United States, residing at Portland, in the county of Multnolnzth and State of Oregon, have invented a new and useful improvement in clash-Locks, of which the following is the specification.

This invention relates to improvements in devices for locking sashes.

The objectof the invention is to provide eoi'ivenient means for adjusting the upper and lower sashes for ventilation end-fastening them together to prevent unauthorized persons moving said sashes farther tron'rthe outside to gain admission to the room.

The invention also comprehends improvements in the spec1fic details of constructlon and arrangement of perts,"to he hereinafterlit) described and the claims.

In the drawings :l igure l,'is a perspective view of my improved sash locln Fig; 2,

particularly pointed out in is vertical. view, illustrating the locking bolt withdrznvn. Fig. 3, is a similar view showingthe sashes adjusted and the locking:

bolt in locking position. Fig. 4c, is an en: larged detail sectional view of the locking bolt and its easing. Fig. 5, is a side elevation of the locking holt casing.

Numeral 1, indicates a casing provided with a flange 2, the casing fitted in an openmg 3, formed in the lower sash 4. The cesmg is open at 1ts inner end and tor 'l'n-d at .its'oppo to end with a threaded opening 5,

and in its side wall is irm'ided with u longitudinnl. slot (3, having an nngulzli' portion 7.

Slidehly mounted in the casing-is a plungcr 8, provided with a reduced stein ll, having .1 threaded portion' 10, on the outer ,(lu-l of which isn finger piece 11. Extending from the side of the plunger 8. is a. lug or proiow tion 12, operating in the longitudinal slot (3 and the angular portion 7, as will he hcroinoften described. Intel-posed hctwccn the plunger 8, end the front wall of the (using 1, is e. coil spring 13, which normally lends to force the plunger outwurdly hcyoud f u: open end of the casing as shown in Fig. l.

The upper sush 15, ol' the window is formed with n mortise or out out portion H3, to receive a. thin strip 17, 'toru'lcd with u plurality of openings or settle 18, which register with openings or depressions in said sash; The strip 17, is pcrumncnllv luslcucrl to the upper sash in any preferred nutnucr.

l frames.

1.7, are rectangular to insure the entrance of withdrawn in the casing as shown in Fig.2,

thefinger piece l1,i.'s turned slightly to dis until said projection is in elinernent with the slot 6, whereupon the spring 13, projects the plunger beyond the edge of the casing, the threaded portion l0,ot' the stem limiting said plunger... After the spring has projected the plungenf;

the outward movement. of

'1 FEICE.

and the projection 12, is beyond theeasing,

the operator then turns the finger piece 111, .to engage the threads of the stem with the threadedopening, and upon continued. rotation of the finger piece the. plunger is" forced forward in one of the openingslS, in

,the upper sash, causing it binding or'locking action between the two sashes. By this oporation the end of the plunger engaging the.

upper sash, tends to force it ontwerdjwhile the lowersash is forced in theoppositedirection. Obviously by this binding of the parts the two -hends means for not only locking the two sashes, but also the binding of the sashes in such. manner as will hold. them rigid in their The openings or seats in the strip the plunger us will be readily understood. To unlock the window sashes the finger piece is turned to cause the threadsto retract the plunger und then'hy slightly with drawing suid linger piece the projection 12, is lit-ought into register with slot (3, and then u slight lateral moven'lent is given to said finger piece to cause the projection to fit into the angular portion of the slot and thereby prevent the spring forcing the plunger out of the casing. in this positionv the sash only he z-uljustcd to suit the convenience of the 'H}')tl;tlt()l'.

'lhe lllv'littlllflll is exceedingly simple, and

by rcuson of the tow ports is not liable to become out of order, and is effective for the purpose for which it is designed.

What l claim is: I

l. A. Hush lock comprisix'lg a casing for ntlmrllmcut to :1 window sash, and formed with a threaded opening and 21 slot having an angular portion, :1 plunger operating in the cusing, u threzuled stem extending from the plungcr, u projection on the plunger which operates in the slot, and a. strip for attachwont to the companion sash, said striphavwindow sashes are held rigidly together and thereby prevented from. rattling.- The invention thereforecomprehas passed the end of the slot to lock the two sashes together. V

2. A sash lock comprising a casing for atz'tachment to a window sash and formed with a threaded opening, a plunger operating in the casing, a stem extending from the plunger and formed with a threaded por-.

tion to engage the threaded opening in the casing when the plunger is pro ecte'd'beyond said casing, a spring interposed between the casing and the plunger to normally project the latter and a strip for attachment to the companionfsash and formed with seats to receive the plunger, the threaded connegtion between the stem and the casingbinding the two sashes together. 0

A sash lock comprising a casing for attachment to a window sash and formed with a threaded opening, a plunger operat ing in the casing, a stern extending from the plunger and formed with a threaded portion toengage the threaded opening in the casing when the plunger is projected be yond ,said casing, a spring interposed between the casing and the plunger to normally project the latter, and means for holding the plunger withdrawn in the casing.

plunger and formed with a threaded portion to engage the threaded opening in the casing i when the plunger is projected beyond the casing, a spring interposed between the easing and the plunger to normally. project the latter, and means including a slot for guiding the plunger in the casing when said plunger .is withdrawn and locking the latter in withdrawn position after the threaded stem is disengaged from the threaded opening. j

5. In a locking device of the character described, comprising a casing formed at one end with a threaded opening and open at its opposite end, a plunger operating in the casing a stem connected to the plunge r and having a threaded stem, passing through the opening in the casing, said threads on' the stem being located to engage the threads in the opening when the end :of the plunger is projected beyond theopen 'end of the cas ing to lock said plunger'in its projected position, and a spring -for normally projecting the plunger.

FRANCIS W. CHAUSSE. Witnesses: t

\ RALPH R. DUNIWAY,

CECIL Lone. 

